/**
 * 
 */
package com.wsmhz.web.controller;

import com.wsmhz.web.async.DeferredResultHolder;
import com.wsmhz.web.async.MockQueue;
import org.apache.commons.lang.RandomStringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.context.request.async.DeferredResult;

import java.util.concurrent.Callable;

/**
 * create by tangbj on 2018/3/25
 * 自定义异步处理控制器
 */
@RestController
@RequestMapping("/order")
public class AsyncController {
	
	@Autowired
	private MockQueue mockQueue;
	
	@Autowired
	private DeferredResultHolder deferredResultHolder;
	
	private Logger logger = LoggerFactory.getLogger(getClass());
	
	@GetMapping("/deferredResult")
	public DeferredResult<String> deferredResult_Order() throws Exception {
		logger.info("主线程开始");
		String orderNumber = RandomStringUtils.randomNumeric(8);
		mockQueue.setPlaceOrder(orderNumber);
		
		DeferredResult<String> result = new DeferredResult<>();
		deferredResultHolder.getMap().put(orderNumber, result);

		logger.info("主线程结束");
		return result;

	}

	@GetMapping("/callable")
	public Callable<String> callable_Order() throws Exception {
		logger.info("主线程开始");

		Callable<String> result = new Callable<String>() {
			@Override
			public String call() throws Exception {
				logger.info("副线程开始");
				Thread.sleep(1000);
				logger.info("副线程返回");
				return "success";
			}
		};
		logger.info("主线程结束");
		return result;
	}

}
